Service Spark Arrester

The engine exhaust muffler has a spark arrester screen. Inspect and clean the screen every 100 hours of operation or once each year, whichever comes first.

If you use your generator on any forest-covered, brush- covered, or grass-covered unimproved land, it must have a spark arrester. The spark arrester must be maintained in good condition by the owner/operator.

If the engine has been running, the muffler will be very hot. Allow the muffler to cool before servicing the spark arrester.

warning

Contact with muffler area can result in serious burns.

Exhaust heat/gases can ignite combustibles, structures or damage fuel tank causing a fire.

•DO NOT touch hot parts and AVOID hot exhaust gases.

•Allow equipment to cool before touching.

•Keep at least 5 feet (1.5 m) of clearance on all sides of generator including overhead.

•Code of Federal Regulation (CFR) Title 36 Parks, Forests, and Public Property require equipment powered by an internal combustion engine to have a spark arrester, maintained in effective working order, complying to USDA Forest service standard 5100-1C or later revision. In the State of California a spark arrester is required under section 4442 of the California Public resources code. Other states may have similar laws.

Clean and inspect the spark arrester as follows:

1.To remove muffler heat shield (A) from muffler (B), remove four screws that connect guard to muffler bracket.

A

B

 

 

 

 

C

D

 

 

2.Remove three screws (C) that attach spark arrester screen (D).

3.Inspect screen and obtain a replacement if torn, perforated or otherwise damaged. DO NOT use a defective screen. If screen is not damaged, clean it with commercial solvent. Dry thoroughly.

4.Reattach screen and muffler guard.

Engine Maintenance

See the engine operator’s manual for instructions on how to properly maintain the engine.

caution

Avoid prolonged or repeated skin contact with used motor oil.

•Used motor oil has been shown to cause skin cancer in certain laboratory animals.

•Thoroughly wash exposed areas with soap and water.

KEEP OUT OF REACH OF CHILDREN. DON’T

POLLUTE. CONSERVE RESOURCES. RETURN

USED OIL TO COLLECTION CENTERS.

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Milwaukee 4970-24, 4960-24 Engine Maintenance, Service Spark Arrester, Clean and inspect the spark arrester as follows
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